flash-forward vs flashback

flash-forward and flashback both are nouns.

Word	Noun	Adjective	Verb	Adverb
flash-forward	Yes	No	No	No
flashback	Yes	No	No	No

flash-forward (noun)	flashback (noun)
a transition (in literary or theatrical works or films) to a later event or scene that interrupts the normal chronological development of the story	a transition (in literary or theatrical works or films) to an earlier event or scene that interrupts the normal chronological development of the story
	an unexpected but vivid recurrence of a past experience (especially a recurrence of the effects of an hallucinogenic drug taken much earlier)